Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@xxxxxxxxxx>:
On Thu, 2 May 2024 10:20:06 -0300 you wrote:
> net_alloc_generic is called by net_alloc, which is called without any
> locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It
> is read twice, first to allocate an array, then to set s.len, which is
> later used to limit the bounds of the array access.
>
> It is possible that the array is allocated and another thread is
> registering a new pernet ops, increments max_gen_ptrs, which is then used
> to set s.len with a larger than allocated length for the variable array.
>
> [...]
Here is the summary with links:
- [net,v3] net: fix out-of-bounds access in ops_init
https://git.kernel.org/netdev/net/c/a26ff37e624d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
